Billie Eilish and Katy Perry are among the star names to have signed a UNICEF open letter which is urging the Group of Seven (G7) countries to donate coronavirus vaccines to the global vaccine equity initiative COVAX.The G7 – whose core members are Canada, France, Germany, Italy, Japan, the UK and the US – are meeting in St Ives, Cornwall from Friday to Sunday (June 11-13) for their latest summit, with the global response to the coronavirus pandemic expected to be top of the agenda.In an open letter published this morning (June 8), UNICEF has called on the G7 “to agree the actions that will get vaccines where they are most needed, fast”.The letter has been signed by a number of UNICEF’s high-profile ambassadors and supporters, including.